Welcome to K7FED
IRLP Node 3319 and EchoLink Node 6778

The node repeater is now operational in Livermore, CA providing local valley area coverage.


The repeater system and EchoLink/IRLP node is open and free for use by any FCC licensed Amateur Radio Operator at any time. 
Please feel free to use the node. 
Guidelines for node operation and control codes are located at the bottom of this page.

Output Freq / Input Freq
444.125 / 449.125

 

 

To check the node connection status on the air just send " 00 " from your DTMF pad.

IRLP Control panel.

What is this repeater trying to tell me? courtesy tones and such...

The controller is currently configured with 4 ports. The controller beeps the port number for the repeater ports.
For the WX reciever you will hear a single EBS type tone.
For the IRLP node you will hear a single Dial Tone sound.

The ports are:

  1. Currently not connected.
  2. The UHF Repeater.
  3. The Echo-IRLP Node Computer.
  4. The EAS Weather receiver.
  5. A virtual port for use by a VOIP connection.

If you hear 1 beep it is the VHF repeater receiver on port one un-keying, 2 beeps is the UHF repeater un-keying.
Dial Tone beep is the EchoIRLP Node un-keying. 

DTMF Control Codes and such...

There are a few public control codes for the system. Here is a list for your awareness:

IRLP Connections:

EchoLink Connections:

 

Basic operational guidelines for IRLP

COMMON MODES
There are two connection modes for an IRLP connection.  Direct one-to-one or, one-to-many via a Reflector.

Direct connect is just like it sounds where repeater (node) "A" connects direct with node "B".  With this type of link the two nodes are interconnected and no other IRLP connections are possible.  While repeaters "A" and "B" are connected, anyone attempting to connect with either node will be told by a  recording that - "The node you are calling is currently connected to callsign" however all local traffic on each repeater will be heard on the other repeater as well.

While Direct Connect is preferred for a city to city chat, another type of  connection in use today is via a "Reflector" (ie Ref 9250 The Western Reflector in Las Vegas, NV Channel 0 ).  A reflector is a computer that is not connected to any radio but rather sits on lots of internet bandwidth capable of allowing many repeaters to be inter-connected together by streaming the received audio back to all other connected stations.  At any given time there are usually 10 to 20 repeaters around the world interconnected via this Reflector.   You can always check which stations are connected to the reflector by visiting http://status.irlp.net and looking for nodes connected to individual nodes or reflectors.

REFLECTOR USE
With reflector use the first thing we must all remember is to leave a gap between transmissions and wait before you speak for a second after you key up.  Having said that this is a good time to list the three main rules when connected to a reflector:

Pause

Pause

Pause

Due to the slight increase in delays created by multiple Tone Squelch radios in the links between the repeater and IRLP link radio, a slight change in our normal operating procedures is required with IRLP. 

By leaving a pause between transmissions it ..... 

allows users on other nodes a chance to check in.

allows other nodes time to send touch-tone commands to drop their node.

The most important guideline to remember is leaving a pause after pressing the PTT button as well as between transmissions

Please visit my affiliate group and the proud owners/operators of the western reflector 9250, 

NEVADA AMATEUR RADIO REPEATERS, INC.

Visit technerd.net while your surfing!

Email me at andy@technerd.net

This page last updated Sunday, March 13, 2011 5:22 PM